New records of Pupilla pratensis (Clessin, 1871) in Western Poland

Two localities of Pupilla pratensis were found in the environs of Gubin and Stęszew, W. Poland. Only one recent record of the species, earlier regarded as an ecotype of the widespread P. muscorum, was known from Poland. Consequently, the distribution and conservation status of the species are not well known. Our data indicate that P. pratensis is rare and has specific habitat requirements. In our study area it was found in only two out of 71 examined localities of a very similar habitat type and sampled on the same occasions. The two localities are wet meadows covered by sedges (mostly Carex acutiforis) growing on a calcareous peat substratum of lacustrine origin; the species is accompanied by two rare and legally protected vertiginids: Vertigo angustior and V. moulinsiana.